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			Thanks for answering! I assumed that development had ceased, since the last version was in 2021. I know it's still on Play Store, though. 
 
I have not used Calibre for maybe ten years or more, I found out many years ago that Cool Reader was better for my use. I need to use the special proof reading font DPCustomMono2 because it distincts very clearly between similar characters. I can't remember if that was a problem with Calibre, but it may have been the reason that I changed apps.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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